Objective: To observe the influence of Nie-pinching the spine manipulation on the excretory rate of urine D-xylose in the infants with diarrhea due to spleen deficiency, and to assess the clinical effects. Methods:Sixty infants in conformity with the diagnostic criteria of diarrhea due to spleen deficiency were randomly divided into a treatment group and a control group by the random digital table, 30 cases in each group. The infants in the treatment group were treated by Nie-pinching the spine manipulation and traditional infantile tuina, in addition to the routine basic treatment. The infants in the control group were treated by the same traditional infantile tuina in addition to the routine basic treatment. The infants in the two groups were treated once every day, 4 weeks as a course. Totally, the treatment was given for a course. The symptom integrals of spleen deficiency were used to assess the improvement in the symptoms. The colorimetry was used to determine the excretory rate of urine D-xylose. Results:In the comparison of the same group before and after the treatment, the differences in the global score of spleen deficiency symptoms and the excretory rate of urine D-xylose in the two groups were statistically significant (allP<0.01). After the treatment, the differences in the global score of spleen deficiency symptoms and the excretory rate of urine D-xylose between the two groups were all statistically significant (bothP<0.01). Conclusion:Chiropractics can reduce the integrals of spleen deficiency symptoms and elevate the excretory rate of urine D-xylose in the infants with diarrhea due to spleen deficiency, so as to enhance the therapeutic effects by alleviating the symptoms of spleen deficiency and the absorptive function of the small intestine.

OBJECTIVETo study the alkaloids in the stems and leaves of Stephania cepharantha.

METHODThe dried stems and leaves of S. cepharantha were percolated with 95% ethanol and the solvent was removed by rotary evaporation to give a concentrate, and the concentrate was extracted by petroleum ether and chloroform. Column chromatograghy on MCI CHP 20P, silica gel, Rp-18, Sephadex LH-20 and polyamide were applied for the isolation and purification of the chloroform fraction. The structures were elucidated by their physicochemical properties and spectral data.

RESULTEleven alkaloids were obtained and identified as lysicamine (1), tetrahadropalmatine (2), palmatine (3), isocorydione (4), corydalmine (5), corypalmine (6), sinoracutine (7), sinoacutine (8), cepharamine (9), isocorydine (10) and corydine (11).

CONCLUSIONCompounds 2-7 were isolated from S. cepharantha for the first time, and compound 7 was isolated from the genus Stephania for the first time, compound 4 was isolated from the Menispermaceae family for the first time.

Alkaloids ; analysis ; isolation & purification ; Plant Leaves ; chemistry ; Plant Stems ; chemistry ; Stephania ; chemistry

Objective To explore clinical classification and strategies for irreducible femur intertrochateric fractures.Methods A retrospective study was conducted of the 96 patients with irreducible intertrochanteric fracture who had been treated from January 2012 through December 2014 at our department.They were 47 men and 49 women,aged from 48 to 97 years (average,78.5 years).We classified the fractures according to location of fracture line and mechanism of fracture displacement into 5 types:13 cases of type Ⅰ (sagittal irreducible fracture),7 cases of type Ⅱ] (coronal irreducible fracture),72 cases of type Ⅲll (sagittal plus coronal irreducible fracture),zero of type Ⅳ (irreducible fracture involving the lesser trochanter),and 4 cases of type Ⅴ (irreducible fracture involving the greater trochanter).All the patients were managed using different techniques for closed reduction and fixation with proximal femoral nails antirotation Ⅱ.Results Of this series,limited open reduction was eventually conducted in 7.The operation time averaged 40 min;the amount of intraoperative blood loss averaged 200 mL.Fracture reduction was rated as grade Ⅰ in 78 cases and as grade Ⅱ in 18.The follow-up time averaged 16.6 months (from 12 to 24 months).All the fractures got united after an average of 5.8 months (from 3 to 9 months).The function of the affected hip was rated at the final follow-up using Harris scoring system as excellent in 79 cases and as good in 17,with an excellent to good rate of 100％.Refracture happened in one patient due to striking injury,urinary infection occurred in 2 patients and no wound infection was observed.Conclusion According to the classification and reduction strategy proposed by us,satisfactory reduction and fracture fixation can be achieved in management of irreducible intertrochanteric fractures.

Objective To investigate the efficacy of lateral decubitus intramedullary nailing for treatment of subtrochanteric fractures of the femur.Methods From January 2012 to December 2015,23 patients with simple femoral subtrochanteric fracture were treated at Department of Orthopedic Trauma,Changhai Hospital.They were 15 males and 8 females,aged from 19 to 77 years (average,48.3 years).According to the Seinsheimer classification,there were 6 cases of type ⅡB,8 cases of type ⅡC,6 cases of type Ⅲ A,and 3 cases of type ⅢB.Their injuries were caused by traffic accident in 10 cases,falling from a height in 5 cases,and sprain in 8 cases.All patients were treated by closed reduction and anterograde intrarnedullary nailing at lateral decubitus.Their operative time,bleeding volume,fluoroscopic frequency,fracture healing time,functional recovery and complications were recorded and analyzed.Results Their operative time ranged from 55 to 80 min,averaging 65.7 min;their bleeding volumes ranged from 240 to 420 mL,averaging 304.3 mL;their fluoroscopic frequency ranged from 30 to 60 times,averaging 42.7 times.This cohort was followed up for 12 to 28 months (average,17.9 months).Their fracture healing time ranged from 4 to 10 months,averaging 5.5 months.Nonunion occurred in one patient but was cured by secondary operation.The HSS evaluation at the final follow-ups showed 17 excellent cases and 6 good ones,yielding an excellent to good rate of 100％.All the wounds healed by the first intention.No infection,deep vein thrombosis or implant failure was observed.Conclusion As lateral decubitus intramedullary nailing can achieve satisfactory clinical efficacy for subtrochanteric fractures of the femur,the body position of lateral decubitus may be a good alternative.

Objective:To revise the 2017 classification of irreducible intertrochanteric fractures and summarize reduction techniques of 2021 classification.Methods:A retrospective analysis was conducted of the 17 patients with irreducible intertrochanteric fracture who had been treated at Department of Orthopaedic Surgery, The Ninth People's Hospital of Shanghai, Shanghai Jiaotong University School of Medicine from January 2015 to December 2019. They were 7 males and 10 females, with an age of (73.2 ± 16.1) years. On the basis of 2017 classification, the irreducible intertrochanteric fractures were classified into 2 types in the present 2021 classification. Type Ⅰ were interlocking fractures which were further classified into 3 subtypes: type ⅠA were sagittal interlocking ones (7 cases), type ⅠB greater trochanter interlocking ones (one case) and type ⅠC lesser trochanter interlocking ones (one case). Type Ⅱ were separating fractures which were further classified into 4 subtypes: type ⅡA were sagittal separating ones (4 cases), type ⅡB coronal separating ones (one case), type ⅡC rotational separating ones(one case) and type ⅡD complete separating ones (2 cases). All patients were treated by closed reduction and intramedullary nailing with different reduction strategies corresponding to their fracture types (application of ejector rods, clamps or prying techniques, etc.). A total of 132 patients with reducible femoral intertrochanteric fracture who had been admitted during the same period were selected as the control group. The fracture reduction time, intraoperative blood loss and Harris hip score at the last follow-up were compared between the 2 groups.Results:The 2 groups were comparable because there was no significant difference in their preoperative general data ( P>0.05). Type ⅠA accounted for the highest proportion of irreducible intertrochanteric fractures [41.3% (7/17)], followed by type ⅡA [23.6% (4/17)]. The fracture reduction time [(44.6 ± 6.7) min] in the irreducible group was significantly longer than that in the control group [(39.2 ± 9.6) min] ( P<0.05). There was no significant difference in intraoperative blood loss or Harris hip score at the last follow-up between the 2 groups ( P>0.05). Conclusions:Compared with the "2017 classification" , the "2021 classification" is more concise and easy to remember, and can directly prompt the corresponding proper fracture reduction techniques. The patients with irreducible intertrochanteric fracture using proper reduction techniques can obtain functional recovery similar to that in the patients with reducible intertrochanteric fracture after reduction and fixation.

Objective:A DNA coordination polymer(Ca-pHis-Apt1 9S)was synthesized and its effect on the activity of bone marrow stem cells(BMSCs)was investigated. Methods:BMSCs were extracted from the epiphysis of the femoral shaft of mice by adherence screening method and identified by the expression of surface antigens through flow cytometry.Cell penetrating peptide pHis was covalently linked with the BMSCs aptamer Aptl9S,and a DNA coordination polymer(Ca-pHis-Aptl 9S),which was expected to improve the viability of BMSCs,was prepared through coordination assembly with calcium ions.BMSCs were treated with different concentrations of Ca-pHis-Apt1 9S,and the effects of Ca-pHis-Apt1 9S on the biological activities and the phenotype of BMSCs were evaluated by CCK-8 assay,live/dead cell staining assay and flow cytometry assay.The targeting ability of Ca-pHis-Apt1 9S toward BMSCs was observed using a fluorescence confocal microscope.Meanwhile,CCK-8 assay was used to study the main components of Ca-pHis-Aptl 9S that could promote the viability of BMSCs. Results:Spherical Ca-pHis-Apt1 9S with the particle size of 50-120 nm was successfully synthesized.The synthesized Ca-pHis-Apt1 9S could significantly promote the viability of BMSCs(P＜0.05)without affecting the apoptosis or the expression of surface antigens(CD29,CD44 and CD34).Confocal microscopy analysis showed that the BMSCs aptamer Apt19S could further enhance the cellular uptake of Ca-pHis-Apt1 9S by BMSCs.The results of CCK-8 assay revealed that pHis in Ca-pHis-Apt1 9S was the main component that could promote the viability of BMSCs,and this promotional effect was dose-dependent(P＜0.05). Conclusion:Ca-pHis-Aptl 9S can target BMSCs in vitro and significantly promote their biological activity without affecting their phenotype,providing a new method for the in vitro culture of BMSCs.

The "flipped classroom" teaching model practiced in the teaching ofcurriculum was introduced. Firstly, the roles and responsibilities of teachers were clarified, indicating teachers provided examples and lectures, and a comprehensive assessment system was established. Secondly, the "flipped classroom" teaching model was split into online learning, classroom learning and offline learning. Online learning aimed at forming a study report by a wide search of relevant information, which was submitted to teachers for review and assessment. Classroom learning was designed to communicate study ideas among students and teachers. Offline learning was intended to revise and improve the study report and refined learning methods. Lastly, the teaching practice effects of "flip classroom" were evaluated by comprehensive rating and questionnaire assessment, which assessed the overall performance of students and overall levels of paper; the learning ability was enhanced, and the interest and motivation of learning were also improved. Therefore, "flipped classroom" teaching mode was suitable for the curriculum of, and could be recommended into the teaching practice of related curriculum of acupuncture and tuina.